Robert Boschgmbh

Willi Muller

Hans Schacht

Max Straubel

Erich Scholz

Gerald Hofer

Karl Konrath

Manfred Schwarz

Wolfgang Haas

Franz-Ulrich Bosch

A diesel fuel filter, which is arranged in a conduit between a fuel tank and a fuel injection pump, comprises a housing accommodating a filter element and a cover non-releasably connected to the housing. A temperature-responsive switching device for switching fuel overflow quantities from the pump to the tank as well as a ventilation device are positioned in a chamber formed by a protruding formation of the cover and a flat plate connected to the housing. A plate shaped pressure control valve, which opens into a contaminated side of the filter element, connects that side to the chamber.

Filter for diesel fuel

An arrangement for cleaning fuel has a housing, a deflecting member in the housing and forming an annular gap extending between a fuel inlet and a fuel outlet and also a water storing chamber separated from the fuel inlet, and electrical water-level-indicating device including a rod-shaped impulse generator extending through the deflecting member into the interior of the water storing chamber and a one-piece float located in the water storing chamber and cooperating with the impulse generator, and a water discharge device provided with a throttle valve which includes a water discharge opening in the bottom of the housing and a throttle valve member cooperating with the water discharge opening, wherein the float forms the throttle member and has a guide opening and a closing surface cooperating with the water discharge opening, the guide opening goes completely through the float and the rod-shaped impulse generator extends into the throughgoing guide opening in condition of the closed throttle valve so as to guide the float in the housing, and the closing surface and the water discharge opening are radially offset relative to the throughgoing guide opening.

Arrangement for cleaning fuel with an electrical water level indicating

In a device for temperature responsive switching of overflow fuel quantities from a diesel fuel injection pump to a fuel supply tank or a filter of a fuel supply system a switching valve, arranged between the fuel injection pump and the tank, is actuated by a bimetallic element. Parallel to the switching valve is provided a throttle for continuous air venting. A pressure control valve with a low opening pressure is installed in the connection between the switching valve and the filter. The heated overflow fuel quantities are mixed with cool fuel from the tank and therefore the danger of clogging of the filter, which could be caused by paraffin separation, is substantially reduced.

Device for temperature responsive switching of overflow fuel quantities

A fuel injection pump in which the onset of fuel injection can be varied by way of a device operating in dependence on speed in a conventional manner by turning the roller ring which cooperates with a cam plate which in turn is connected with the pump and distributor piston. In accordance with the present invention the angle of twist of the roller ring is limited by a stop which engages this ring.

Growing community of inventors

Sulz, Germany

Willi Muller